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Take One Out of the Web is a free printable Grade 5 science worksheet on predicting how a change to one part of a food web affects the rest, aligned to NGSS performance expectation 5-LS2-1. It prints 7 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 3 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Take One Out of the Web

5-LS2-1

NameDate

Read the food web, then answer the questions.

1.Read the record, then answer the questions.

Who Eats What in Our Pond

A food web the class drew from a term of pond-dipping records. WHO EATS WHAT Pondweed and algae are eaten by snails, tadpoles and mayfly larvae. Mayfly larvae are eaten by newts and fish. Snails are eaten by newts and frogs. Tadpoles are eaten by newts and fish. Frogs and fish are eaten by herons. Dead plants, dead animals and droppings are broken down by bacteria and worms in the mud, returning matter to the water.

  1. 1. What breaks down the dead plants and animals?
  2. 2. What does every food chain in this web begin with?
  3. 3. If a disease killed the pondweed and algae, what would happen?
  4. 4. If the frogs disappeared, what would the herons have left to eat?
2.Why can removing one plant affect an animal that never eats it?
  • A.The animals that animal eats may depend on that plant
  • B.It cannot affect it
  • C.Animals smell plants
3.A forest fire burns the trees. Which animals lose their food first?
  • A.The animals that eat other animals
  • B.Those that eat the leaves and seeds of the trees
  • C.None, fire does not affect food
4.The rabbits in that field then increase. What happens to the grass?
  • A.It is not affected
  • B.There is less of it, because more rabbits are eating it
  • C.There is more of it
5.Why does a web with many kinds of living thing cope better with a change?
  • A.Big webs never change
  • B.If one food runs short, animals can eat something else
  • C.More kinds means less food
6.A new road cuts a wood in two. What is one effect on the animals?
  • A.Some can no longer reach food or mates on the other side
  • B.None at all
  • C.They all get more food
7.All the decomposers are removed from a sealed tank. What builds up?
  • A.Dead material that is never broken down
  • B.More living plants
  • C.Clean water

LessonPrint · 5-LS2-1 · Set 3 · free to copy for classroom use

Answer key — Take One Out of the Web

Set 3. Prints on its own sheet.

  1. 1.1. Bacteria and worms in the mud. 2. Pondweed and algae. 3. The snails, tadpoles and mayfly larvae would lose their food, and then so would the animals that eat them. 4. Only the fish, so the herons would eat more fish.
  2. 2.The animals that animal eats may depend on that plant
  3. 3.Those that eat the leaves and seeds of the trees
  4. 4.There is less of it, because more rabbits are eating it
  5. 5.If one food runs short, animals can eat something else
  6. 6.Some can no longer reach food or mates on the other side
  7. 7.Dead material that is never broken down

Last reviewed 2026-09-05. Aligned to 5-LS2-1 of the Next Generation Science Standards.